[p5sagit/p5-mst-13.2.git] / ext / Time / HiRes / HiRes.xs

#ifdef __cplusplus
extern "C" {
#endif
#include "EXTERN.h"
#include "perl.h"
#include "XSUB.h"
#ifdef WIN32
#include <time.h>
#else
#include <sys/time.h>
#endif
#ifdef __cplusplus
}
#endif

static IV
constant(char *name, int arg)
{
    errno = 0;
    switch (*name) {
    case 'I':
      if (strEQ(name, "ITIMER_REAL"))
#ifdef ITIMER_REAL
	return ITIMER_REAL;
#else
	goto not_there;
#endif
      if (strEQ(name, "ITIMER_REALPROF"))
#ifdef ITIMER_REALPROF
	return ITIMER_REALPROF;
#else
	goto not_there;
#endif
      if (strEQ(name, "ITIMER_VIRTUAL"))
#ifdef ITIMER_VIRTUAL
	return ITIMER_VIRTUAL;
#else
	goto not_there;
#endif
      if (strEQ(name, "ITIMER_PROF"))
#ifdef ITIMER_PROF
	return ITIMER_PROF;
#else
	goto not_there;
#endif
      break;
    }
    errno = EINVAL;
    return 0;

not_there:
    errno = ENOENT;
    return 0;
}

#if !defined(HAS_GETTIMEOFDAY) && defined(WIN32)
#define HAS_GETTIMEOFDAY

/* shows up in winsock.h?
struct timeval {
 long tv_sec;
 long tv_usec;
}
*/

int
gettimeofday (struct timeval *tp, int nothing)
{
 SYSTEMTIME st;
 time_t tt;
 struct tm tmtm;
 /* mktime converts local to UTC */
 GetLocalTime (&st);
 tmtm.tm_sec = st.wSecond;
 tmtm.tm_min = st.wMinute;
 tmtm.tm_hour = st.wHour;
 tmtm.tm_mday = st.wDay;
 tmtm.tm_mon = st.wMonth - 1;
 tmtm.tm_year = st.wYear - 1900;
 tmtm.tm_wday = st.wDayOfWeek;
 tmtm.tm_isdst = -1;
 tt = mktime (&tmtm);
 tp->tv_sec = tt;
 tp->tv_usec = st.wMilliseconds * 1000;
 return 0;
}
#endif

#if !defined(HAS_GETTIMEOFDAY) && defined(VMS)
#define HAS_GETTIMEOFDAY

#include <time.h> /* gettimeofday */
#include <stdlib.h> /* qdiv */
#include <starlet.h> /* sys$gettim */
#include <descrip.h>
#ifdef __VAX
#include <lib$routines.h> /* lib$ediv() */
#endif

/*
        VMS binary time is expressed in 100 nano-seconds since
        system base time which is 17-NOV-1858 00:00:00.00
*/

#define DIV_100NS_TO_SECS  10000000L
#define DIV_100NS_TO_USECS 10L

/* 
        gettimeofday is supposed to return times since the epoch
        so need to determine this in terms of VMS base time
*/
static $DESCRIPTOR(dscepoch,"01-JAN-1970 00:00:00.00");

#ifdef __VAX
static long base_adjust[2]={0L,0L};
#else
static __int64 base_adjust=0;
#endif

int
gettimeofday (struct timeval *tp, void *tpz)
{
 long ret;
#ifdef __VAX
 long quad[2];
 long quad1[2];
 long div_100ns_to_secs;
 long div_100ns_to_usecs;
 long quo,rem;
 long quo1,rem1;
#else
 __int64 quad;
 __qdiv_t ans1,ans2;
#endif
/*
        In case of error, tv_usec = 0 and tv_sec = VMS condition code.
        The return from function is also set to -1.
        This is not exactly as per the manual page.
*/

 tp->tv_usec = 0;

#ifdef __VAX
 if (base_adjust[0]==0 && base_adjust[1]==0) {
#else
 if (base_adjust==0) { /* Need to determine epoch adjustment */
#endif
        ret=sys$bintim(&dscepoch,&base_adjust);
        if (1 != (ret &&1)) {
                tp->tv_sec = ret;
                return -1;
        }
 }

 ret=sys$gettim(&quad); /* Get VMS system time */
 if ((1 && ret) == 1) {
#ifdef __VAX
        quad[0] -= base_adjust[0]; /* convert to epoch offset */
        quad[1] -= base_adjust[1]; /* convert 2nd half of quadword */
        div_100ns_to_secs = DIV_100NS_TO_SECS;
        div_100ns_to_usecs = DIV_100NS_TO_USECS;
        lib$ediv(&div_100ns_to_secs,&quad,&quo,&rem);
        quad1[0] = rem;
        quad1[1] = 0L;
        lib$ediv(&div_100ns_to_usecs,&quad1,&quo1,&rem1);
        tp->tv_sec = quo; /* Whole seconds */
        tp->tv_usec = quo1; /* Micro-seconds */
#else
        quad -= base_adjust; /* convert to epoch offset */
        ans1=qdiv(quad,DIV_100NS_TO_SECS);
        ans2=qdiv(ans1.rem,DIV_100NS_TO_USECS);
        tp->tv_sec = ans1.quot; /* Whole seconds */
        tp->tv_usec = ans2.quot; /* Micro-seconds */
#endif
 } else {
        tp->tv_sec = ret;
        return -1;
 }
 return 0;
}
#endif

#if !defined(HAS_USLEEP) && defined(HAS_SELECT)
#ifndef SELECT_IS_BROKEN
#define HAS_USLEEP
#define usleep hrt_usleep  /* could conflict with ncurses for static build */

void
hrt_usleep(unsigned long usec)
{
    struct timeval tv;
    tv.tv_sec = 0;
    tv.tv_usec = usec;
    select(0, (Select_fd_set_t)NULL, (Select_fd_set_t)NULL,
		(Select_fd_set_t)NULL, &tv);
}
#endif
#endif

#if !defined(HAS_USLEEP) && defined(WIN32)
#define HAS_USLEEP
#define usleep hrt_usleep  /* could conflict with ncurses for static build */

void
hrt_usleep(unsigned long usec)
{
    long msec;
    msec = usec / 1000;
    Sleep (msec);
}
#endif


#if !defined(HAS_UALARM) && defined(HAS_SETITIMER)
#define HAS_UALARM
#define ualarm hrt_ualarm  /* could conflict with ncurses for static build */

int
hrt_ualarm(int usec, int interval)
{
   struct itimerval itv;
   itv.it_value.tv_sec = usec / 1000000;
   itv.it_value.tv_usec = usec % 1000000;
   itv.it_interval.tv_sec = interval / 1000000;
   itv.it_interval.tv_usec = interval % 1000000;
   return setitimer(ITIMER_REAL, &itv, 0);
}
#endif

#ifdef HAS_GETTIMEOFDAY

static int
myU2time(UV *ret)
{
  struct timeval Tp;
  int status;
  status = gettimeofday (&Tp, NULL);
  ret[0] = Tp.tv_sec;
  ret[1] = Tp.tv_usec;
  return status;
}

static NV
myNVtime()
{
  struct timeval Tp;
  int status;
  status = gettimeofday (&Tp, NULL);
  return status == 0 ? Tp.tv_sec + (Tp.tv_usec / 1000000.) : -1.0;
}

#endif

MODULE = Time::HiRes            PACKAGE = Time::HiRes

PROTOTYPES: ENABLE

BOOT:
#ifdef HAS_GETTIMEOFDAY
{
  UV auv[2];
  hv_store(PL_modglobal, "Time::NVtime", 12, newSViv((IV) myNVtime()), 0);
  if (myU2time(auv) == 0)
    hv_store(PL_modglobal, "Time::U2time", 12, newSViv((IV) auv[0]), 0);
}
#endif

IV
constant(name, arg)
	char *		name
	int		arg

#ifdef HAS_USLEEP

void
usleep(useconds)
        int useconds 

void
sleep(...)
	PROTOTYPE: ;$
	CODE:
	if (items > 0)
	    usleep((int)(SvNV(ST(0)) * 1000000));
	else
	    PerlProc_pause();

#endif

#ifdef HAS_UALARM

int
ualarm(useconds,interval=0)
	int useconds
	int interval

int
alarm(fseconds,finterval=0)
	NV fseconds
	NV finterval
	PREINIT:
	int useconds, uinterval;
	CODE:
	useconds = fseconds * 1000000;
	uinterval = finterval * 1000000;
	RETVAL = ualarm (useconds, uinterval);

	OUTPUT:
	RETVAL

#endif

#ifdef HAS_GETTIMEOFDAY

void
gettimeofday()
        PREINIT:
        struct timeval Tp;
        PPCODE:
	int status;
        status = gettimeofday (&Tp, NULL);
        if (GIMME == G_ARRAY) {
	     EXTEND(sp, 2);
             PUSHs(sv_2mortal(newSViv(Tp.tv_sec)));
             PUSHs(sv_2mortal(newSViv(Tp.tv_usec)));
        } else {
             EXTEND(sp, 1);
             PUSHs(sv_2mortal(newSVnv(Tp.tv_sec + (Tp.tv_usec / 1000000.0))));
        }

NV
time()
        PREINIT:
        struct timeval Tp;
        CODE:
	int status;
        status = gettimeofday (&Tp, NULL);
        RETVAL = Tp.tv_sec + (Tp.tv_usec / 1000000.);
	OUTPUT:
	RETVAL

#endif

#if defined(HAS_GETITIMER) && defined(HAS_SETITIMER)

#define TV2NV(tv) ((NV)((tv).tv_sec) + 0.000001 * (NV)((tv).tv_usec))

void
setitimer(which, seconds, interval = 0)
	int which
	NV seconds
	NV interval
    PREINIT:
	struct itimerval newit;
	struct itimerval oldit;
    PPCODE:
	newit.it_value.tv_sec  = seconds;
	newit.it_value.tv_usec =
	  (seconds  - (NV)newit.it_value.tv_sec)    * 1000000.0;
	newit.it_interval.tv_sec  = interval;
	newit.it_interval.tv_usec =
	  (interval - (NV)newit.it_interval.tv_sec) * 1000000.0;
	if (setitimer(which, &newit, &oldit) == 0) {
	  EXTEND(sp, 1);
	  PUSHs(sv_2mortal(newSVnv(TV2NV(oldit.it_value))));
	  if (GIMME == G_ARRAY) {
	    EXTEND(sp, 1);
	    PUSHs(sv_2mortal(newSVnv(TV2NV(oldit.it_interval))));
	  }
	}

void
getitimer(which)
	int which
    PREINIT:
	struct itimerval nowit;
    PPCODE:
	if (getitimer(which, &nowit) == 0) {
	  EXTEND(sp, 1);
	  PUSHs(sv_2mortal(newSVnv(TV2NV(nowit.it_value))));
	  if (GIMME == G_ARRAY) {
	    EXTEND(sp, 1);
	    PUSHs(sv_2mortal(newSVnv(TV2NV(nowit.it_interval))));
	  }
	}

#endif

# $Id: HiRes.xs,v 1.11 1999/03/16 02:27:38 wegscd Exp wegscd $

# $Log: HiRes.xs,v $
# Revision 1.11  1999/03/16 02:27:38  wegscd
# Add U2time, NVtime. Fix symbols for static link.
#
# Revision 1.10  1998/09/30 02:36:25  wegscd
# Add VMS changes.
#
# Revision 1.9  1998/07/07 02:42:06  wegscd
# Win32 usleep()
#
# Revision 1.8  1998/07/02 01:47:26  wegscd
# Add Win32 code for gettimeofday.
#
# Revision 1.7  1997/11/13 02:08:12  wegscd
# Add missing EXTEND in gettimeofday() scalar code.
#
# Revision 1.6  1997/11/11 02:32:35  wegscd
# Do something useful when calling gettimeofday() in a scalar context.
# The patch is courtesy of Gisle Aas.
#
# Revision 1.5  1997/11/06 03:10:47  wegscd
# Fake ualarm() if we have setitimer.
#
# Revision 1.4  1997/11/05 05:41:23  wegscd
# Turn prototypes ON (suggested by Gisle Aas)
#
# Revision 1.3  1997/10/13 20:56:15  wegscd
# Add PROTOTYPES: DISABLE
#
# Revision 1.2  1997/05/23 01:01:38  wegscd
# Conditional compilation, depending on what the OS gives us.
#
# Revision 1.1  1996/09/03 18:26:35  wegscd
# Initial revision
#
#
Commit	Line	Data
dcf686c9	1	#ifdef __cplusplus
	2	extern "C" {
	3	#endif
	4	#include "EXTERN.h"
	5	#include "perl.h"
	6	#include "XSUB.h"
	7	#ifdef WIN32
	8	#include <time.h>
	9	#else
	10	#include <sys/time.h>
	11	#endif
	12	#ifdef __cplusplus
	13	}
	14	#endif
	15
3c72ec00	16	static IV
	17	constant(char *name, int arg)
	18	{
	19	errno = 0;
	20	switch (*name) {
	21	case 'I':
	22	if (strEQ(name, "ITIMER_REAL"))
	23	#ifdef ITIMER_REAL
	24	return ITIMER_REAL;
	25	#else
	26	goto not_there;
	27	#endif
	28	if (strEQ(name, "ITIMER_REALPROF"))
	29	#ifdef ITIMER_REALPROF
	30	return ITIMER_REALPROF;
	31	#else
	32	goto not_there;
	33	#endif
	34	if (strEQ(name, "ITIMER_VIRTUAL"))
	35	#ifdef ITIMER_VIRTUAL
	36	return ITIMER_VIRTUAL;
	37	#else
	38	goto not_there;
	39	#endif
	40	if (strEQ(name, "ITIMER_PROF"))
	41	#ifdef ITIMER_PROF
	42	return ITIMER_PROF;
	43	#else
	44	goto not_there;
	45	#endif
	46	break;
	47	}
	48	errno = EINVAL;
	49	return 0;
	50
	51	not_there:
	52	errno = ENOENT;
	53	return 0;
	54	}
	55
dcf686c9	56	#if !defined(HAS_GETTIMEOFDAY) && defined(WIN32)
	57	#define HAS_GETTIMEOFDAY
	58
	59	/* shows up in winsock.h?
	60	struct timeval {
	61	long tv_sec;
	62	long tv_usec;
	63	}
	64	*/
	65
	66	int
	67	gettimeofday (struct timeval *tp, int nothing)
	68	{
	69	SYSTEMTIME st;
	70	time_t tt;
	71	struct tm tmtm;
	72	/* mktime converts local to UTC */
7fcd0fc5	73	GetLocalTime (&st);
dcf686c9	74	tmtm.tm_sec = st.wSecond;
	75	tmtm.tm_min = st.wMinute;
	76	tmtm.tm_hour = st.wHour;
	77	tmtm.tm_mday = st.wDay;
	78	tmtm.tm_mon = st.wMonth - 1;
	79	tmtm.tm_year = st.wYear - 1900;
7fcd0fc5	80	tmtm.tm_wday = st.wDayOfWeek;
dcf686c9	81	tmtm.tm_isdst = -1;
	82	tt = mktime (&tmtm);
	83	tp->tv_sec = tt;
	84	tp->tv_usec = st.wMilliseconds * 1000;
	85	return 0;
	86	}
	87	#endif
	88
	89	#if !defined(HAS_GETTIMEOFDAY) && defined(VMS)
	90	#define HAS_GETTIMEOFDAY
	91
	92	#include <time.h> /* gettimeofday */
	93	#include <stdlib.h> /* qdiv */
	94	#include <starlet.h> /* sys$gettim */
	95	#include <descrip.h>
3785778e	96	#ifdef __VAX
	97	#include <lib$routines.h> /* lib$ediv() */
	98	#endif
dcf686c9	99
	100	/*
	101	VMS binary time is expressed in 100 nano-seconds since
	102	system base time which is 17-NOV-1858 00:00:00.00
	103	*/
	104
	105	#define DIV_100NS_TO_SECS 10000000L
	106	#define DIV_100NS_TO_USECS 10L
	107
	108	/*
	109	gettimeofday is supposed to return times since the epoch
	110	so need to determine this in terms of VMS base time
	111	*/
	112	static $DESCRIPTOR(dscepoch,"01-JAN-1970 00:00:00.00");
	113
5cdb7193	114	#ifdef __VAX
3785778e	115	static long base_adjust[2]={0L,0L};
5cdb7193	116	#else
dcf686c9	117	static __int64 base_adjust=0;
5cdb7193	118	#endif
dcf686c9	119
	120	int
	121	gettimeofday (struct timeval tp, void tpz)
	122	{
	123	long ret;
5cdb7193	124	#ifdef __VAX
3785778e	125	long quad[2];
	126	long quad1[2];
	127	long div_100ns_to_secs;
	128	long div_100ns_to_usecs;
	129	long quo,rem;
	130	long quo1,rem1;
5cdb7193	131	#else
dcf686c9	132	__int64 quad;
dcf686c9	133	__qdiv_t ans1,ans2;
5cdb7193	134	#endif
dcf686c9	135	/*
	136	In case of error, tv_usec = 0 and tv_sec = VMS condition code.
	137	The return from function is also set to -1.
	138	This is not exactly as per the manual page.
	139	*/
	140
	141	tp->tv_usec = 0;
	142
3785778e	143	#ifdef __VAX
	144	if (base_adjust[0]==0 && base_adjust[1]==0) {
	145	#else
dcf686c9	146	if (base_adjust==0) { /* Need to determine epoch adjustment */
3785778e	147	#endif
dcf686c9	148	ret=sys$bintim(&dscepoch,&base_adjust);
	149	if (1 != (ret &&1)) {
	150	tp->tv_sec = ret;
	151	return -1;
	152	}
	153	}
	154
	155	ret=sys$gettim(&quad); /* Get VMS system time */
	156	if ((1 && ret) == 1) {
5cdb7193	157	#ifdef __VAX
3785778e	158	quad[0] -= base_adjust[0]; /* convert to epoch offset */
	159	quad[1] -= base_adjust[1]; /* convert 2nd half of quadword */
	160	div_100ns_to_secs = DIV_100NS_TO_SECS;
	161	div_100ns_to_usecs = DIV_100NS_TO_USECS;
	162	lib$ediv(&div_100ns_to_secs,&quad,&quo,&rem);
	163	quad1[0] = rem;
	164	quad1[1] = 0L;
	165	lib$ediv(&div_100ns_to_usecs,&quad1,&quo1,&rem1);
	166	tp->tv_sec = quo; /* Whole seconds */
	167	tp->tv_usec = quo1; /* Micro-seconds */
5cdb7193	168	#else
3785778e	169	quad -= base_adjust; /* convert to epoch offset */
dcf686c9	170	ans1=qdiv(quad,DIV_100NS_TO_SECS);
	171	ans2=qdiv(ans1.rem,DIV_100NS_TO_USECS);
	172	tp->tv_sec = ans1.quot; /* Whole seconds */
	173	tp->tv_usec = ans2.quot; /* Micro-seconds */
3785778e	174	#endif
dcf686c9	175	} else {
	176	tp->tv_sec = ret;
	177	return -1;
	178	}
	179	return 0;
	180	}
	181	#endif
	182
	183	#if !defined(HAS_USLEEP) && defined(HAS_SELECT)
	184	#ifndef SELECT_IS_BROKEN
	185	#define HAS_USLEEP
	186	#define usleep hrt_usleep /* could conflict with ncurses for static build */
	187
	188	void
	189	hrt_usleep(unsigned long usec)
	190	{
	191	struct timeval tv;
	192	tv.tv_sec = 0;
	193	tv.tv_usec = usec;
	194	select(0, (Select_fd_set_t)NULL, (Select_fd_set_t)NULL,
	195	(Select_fd_set_t)NULL, &tv);
	196	}
	197	#endif
	198	#endif
	199
	200	#if !defined(HAS_USLEEP) && defined(WIN32)
	201	#define HAS_USLEEP
	202	#define usleep hrt_usleep /* could conflict with ncurses for static build */
	203
	204	void
	205	hrt_usleep(unsigned long usec)
	206	{
	207	long msec;
	208	msec = usec / 1000;
	209	Sleep (msec);
	210	}
	211	#endif
	212
	213
	214	#if !defined(HAS_UALARM) && defined(HAS_SETITIMER)
	215	#define HAS_UALARM
	216	#define ualarm hrt_ualarm /* could conflict with ncurses for static build */
	217
	218	int
	219	hrt_ualarm(int usec, int interval)
	220	{
	221	struct itimerval itv;
	222	itv.it_value.tv_sec = usec / 1000000;
	223	itv.it_value.tv_usec = usec % 1000000;
	224	itv.it_interval.tv_sec = interval / 1000000;
	225	itv.it_interval.tv_usec = interval % 1000000;
	226	return setitimer(ITIMER_REAL, &itv, 0);
	227	}
	228	#endif
	229
	230	#ifdef HAS_GETTIMEOFDAY
	231
a2e20b18	232	static int
dcf686c9	233	myU2time(UV *ret)
	234	{
	235	struct timeval Tp;
	236	int status;
	237	status = gettimeofday (&Tp, NULL);
	238	ret[0] = Tp.tv_sec;
	239	ret[1] = Tp.tv_usec;
a2e20b18	240	return status;
dcf686c9	241	}
dcf686c9	242
3c72ec00	243	static NV
dcf686c9	244	myNVtime()
	245	{
	246	struct timeval Tp;
	247	int status;
	248	status = gettimeofday (&Tp, NULL);
a2e20b18	249	return status == 0 ? Tp.tv_sec + (Tp.tv_usec / 1000000.) : -1.0;
dcf686c9	250	}
	251
	252	#endif
	253
	254	MODULE = Time::HiRes PACKAGE = Time::HiRes
	255
	256	PROTOTYPES: ENABLE
	257
	258	BOOT:
dcf686c9	259	#ifdef HAS_GETTIMEOFDAY
a2e20b18	260	{
	261	UV auv[2];
	262	hv_store(PL_modglobal, "Time::NVtime", 12, newSViv((IV) myNVtime()), 0);
	263	if (myU2time(auv) == 0)
	264	hv_store(PL_modglobal, "Time::U2time", 12, newSViv((IV) auv[0]), 0);
	265	}
dcf686c9	266	#endif
dcf686c9	267
3c72ec00	268	IV
	269	constant(name, arg)
	270	char * name
	271	int arg
	272
dcf686c9	273	#ifdef HAS_USLEEP
	274
	275	void
	276	usleep(useconds)
	277	int useconds
	278
	279	void
f9d00e57	280	sleep(...)
89c2f7cb	281	PROTOTYPE: ;$
dcf686c9	282	CODE:
f9d00e57	283	if (items > 0)
	284	usleep((int)(SvNV(ST(0)) * 1000000));
	285	else
	286	PerlProc_pause();
dcf686c9	287
	288	#endif
	289
	290	#ifdef HAS_UALARM
	291
	292	int
	293	ualarm(useconds,interval=0)
	294	int useconds
	295	int interval
	296
	297	int
	298	alarm(fseconds,finterval=0)
3c72ec00	299	NV fseconds
3c72ec00	300	NV finterval
dcf686c9	301	PREINIT:
	302	int useconds, uinterval;
	303	CODE:
	304	useconds = fseconds * 1000000;
	305	uinterval = finterval * 1000000;
	306	RETVAL = ualarm (useconds, uinterval);
	307
c6c619a9	308	OUTPUT:
	309	RETVAL
	310
dcf686c9	311	#endif
	312
	313	#ifdef HAS_GETTIMEOFDAY
	314
	315	void
	316	gettimeofday()
	317	PREINIT:
	318	struct timeval Tp;
	319	PPCODE:
	320	int status;
	321	status = gettimeofday (&Tp, NULL);
	322	if (GIMME == G_ARRAY) {
	323	EXTEND(sp, 2);
	324	PUSHs(sv_2mortal(newSViv(Tp.tv_sec)));
	325	PUSHs(sv_2mortal(newSViv(Tp.tv_usec)));
	326	} else {
	327	EXTEND(sp, 1);
	328	PUSHs(sv_2mortal(newSVnv(Tp.tv_sec + (Tp.tv_usec / 1000000.0))));
	329	}
	330
3c72ec00	331	NV
dcf686c9	332	time()
	333	PREINIT:
	334	struct timeval Tp;
	335	CODE:
	336	int status;
	337	status = gettimeofday (&Tp, NULL);
	338	RETVAL = Tp.tv_sec + (Tp.tv_usec / 1000000.);
	339	OUTPUT:
	340	RETVAL
	341
	342	#endif
	343
3c72ec00	344	#if defined(HAS_GETITIMER) && defined(HAS_SETITIMER)
	345
	346	#define TV2NV(tv) ((NV)((tv).tv_sec) + 0.000001 * (NV)((tv).tv_usec))
	347
	348	void
	349	setitimer(which, seconds, interval = 0)
	350	int which
	351	NV seconds
	352	NV interval
	353	PREINIT:
	354	struct itimerval newit;
	355	struct itimerval oldit;
	356	PPCODE:
	357	newit.it_value.tv_sec = seconds;
	358	newit.it_value.tv_usec =
	359	(seconds - (NV)newit.it_value.tv_sec) * 1000000.0;
	360	newit.it_interval.tv_sec = interval;
	361	newit.it_interval.tv_usec =
	362	(interval - (NV)newit.it_interval.tv_sec) * 1000000.0;
	363	if (setitimer(which, &newit, &oldit) == 0) {
	364	EXTEND(sp, 1);
	365	PUSHs(sv_2mortal(newSVnv(TV2NV(oldit.it_value))));
	366	if (GIMME == G_ARRAY) {
	367	EXTEND(sp, 1);
	368	PUSHs(sv_2mortal(newSVnv(TV2NV(oldit.it_interval))));
	369	}
	370	}
	371
	372	void
	373	getitimer(which)
	374	int which
	375	PREINIT:
	376	struct itimerval nowit;
	377	PPCODE:
	378	if (getitimer(which, &nowit) == 0) {
	379	EXTEND(sp, 1);
	380	PUSHs(sv_2mortal(newSVnv(TV2NV(nowit.it_value))));
	381	if (GIMME == G_ARRAY) {
	382	EXTEND(sp, 1);
	383	PUSHs(sv_2mortal(newSVnv(TV2NV(nowit.it_interval))));
	384	}
	385	}
	386
	387	#endif
	388
dcf686c9	389	# $Id: HiRes.xs,v 1.11 1999/03/16 02:27:38 wegscd Exp wegscd $
	390
	391	# $Log: HiRes.xs,v $
	392	# Revision 1.11 1999/03/16 02:27:38 wegscd
	393	# Add U2time, NVtime. Fix symbols for static link.
	394	#
	395	# Revision 1.10 1998/09/30 02:36:25 wegscd
	396	# Add VMS changes.
	397	#
	398	# Revision 1.9 1998/07/07 02:42:06 wegscd
	399	# Win32 usleep()
	400	#
	401	# Revision 1.8 1998/07/02 01:47:26 wegscd
	402	# Add Win32 code for gettimeofday.
	403	#
	404	# Revision 1.7 1997/11/13 02:08:12 wegscd
	405	# Add missing EXTEND in gettimeofday() scalar code.
	406	#
	407	# Revision 1.6 1997/11/11 02:32:35 wegscd
	408	# Do something useful when calling gettimeofday() in a scalar context.
	409	# The patch is courtesy of Gisle Aas.
	410	#
	411	# Revision 1.5 1997/11/06 03:10:47 wegscd
	412	# Fake ualarm() if we have setitimer.
	413	#
	414	# Revision 1.4 1997/11/05 05:41:23 wegscd
	415	# Turn prototypes ON (suggested by Gisle Aas)
	416	#
	417	# Revision 1.3 1997/10/13 20:56:15 wegscd
	418	# Add PROTOTYPES: DISABLE
	419	#
	420	# Revision 1.2 1997/05/23 01:01:38 wegscd
	421	# Conditional compilation, depending on what the OS gives us.
	422	#
	423	# Revision 1.1 1996/09/03 18:26:35 wegscd
	424	# Initial revision
	425	#
	426	#